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<div class="title">TensorScanSycl.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// This file is part of Eigen, a lightweight C++ template library</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// for linear algebra.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Mehdi Goli    Codeplay Software Ltd.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// Ralph Potter  Codeplay Software Ltd.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// Luke Iwanski  Codeplay Software Ltd.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// Contact: &lt;eigen@codeplay.com&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">// This Source Code Form is subject to the terms of the Mozilla</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">// Public License v. 2.0. If a copy of the MPL was not distributed</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">/*****************************************************************</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * TensorScanSycl.h</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * \brief:</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> *  Tensor Scan Sycl implement the extend  version of</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * &quot;Efficient parallel scan algorithms for GPUs.&quot; .for Tensor operations.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * The algorithm requires up to 3 stage (consequently 3 kernels) depending on</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * the size of the tensor. In the first kernel (ScanKernelFunctor), each</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * threads within the work-group individually reduces the allocated elements per</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * thread in order to reduces the total number of blocks. In the next step all</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * thread within the work-group will reduce the associated blocks into the</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * temporary buffers. In the next kernel(ScanBlockKernelFunctor), the temporary</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> * buffer is given as an input and all the threads within a work-group scan and</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> * reduces the boundaries between the blocks (generated from the previous</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> * kernel). and write the data on the temporary buffer. If the second kernel is</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> * required, the third and final kernel (ScanAdjustmentKernelFunctor) will</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"> * adjust the final result into the output buffer.</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment"> * The original algorithm for the parallel prefix sum can be found here:</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment"> * Sengupta, Shubhabrata, Mark Harris, and Michael Garland. &quot;Efficient parallel</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment"> * scan algorithms for GPUs.&quot; NVIDIA, Santa Clara, CA, Tech. Rep. NVR-2008-003</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment"> *1, no. 1 (2008): 1-17.</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment"> *****************************************************************/</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#ifndef UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_SYCL_SYCL_HPP</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#define UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_SYCL_SYCL_HPP</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160; </div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;./InternalHeaderCheck.h&quot;</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160; </div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceEigen.html">Eigen</a> {</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">namespace </span>TensorSycl {</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160; </div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#ifndef EIGEN_SYCL_MAX_GLOBAL_RANGE</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#define EIGEN_SYCL_MAX_GLOBAL_RANGE (EIGEN_SYCL_LOCAL_THREAD_DIM0 * EIGEN_SYCL_LOCAL_THREAD_DIM1 * 4)</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; </div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> index_t&gt;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">struct </span>ScanParameters {</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  <span class="comment">// must be power of 2</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keyword">static</span> EIGEN_CONSTEXPR index_t ScanPerThread = 8;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;  <span class="keyword">const</span> index_t total_size;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  <span class="keyword">const</span> index_t non_scan_size;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  <span class="keyword">const</span> index_t scan_size;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  <span class="keyword">const</span> index_t non_scan_stride;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;  <span class="keyword">const</span> index_t scan_stride;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;  <span class="keyword">const</span> index_t panel_threads;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  <span class="keyword">const</span> index_t group_threads;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;  <span class="keyword">const</span> index_t block_threads;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  <span class="keyword">const</span> index_t elements_per_group;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;  <span class="keyword">const</span> index_t elements_per_block;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;  <span class="keyword">const</span> index_t loop_range;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  ScanParameters(index_t total_size_, index_t non_scan_size_, index_t scan_size_, index_t non_scan_stride_,</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;                 index_t scan_stride_, index_t panel_threads_, index_t group_threads_, index_t block_threads_,</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;                 index_t elements_per_group_, index_t elements_per_block_, index_t loop_range_)</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;      : total_size(total_size_),</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        non_scan_size(non_scan_size_),</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        scan_size(scan_size_),</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        non_scan_stride(non_scan_stride_),</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        scan_stride(scan_stride_),</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        panel_threads(panel_threads_),</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        group_threads(group_threads_),</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        block_threads(block_threads_),</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        elements_per_group(elements_per_group_),</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        elements_per_block(elements_per_block_),</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        loop_range(loop_range_) {}</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;};</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160; </div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keyword">enum class</span> scan_step { first, second };</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Evaluator, <span class="keyword">typename</span> CoeffReturnType, <span class="keyword">typename</span> OutAccessor, <span class="keyword">typename</span> Op, <span class="keyword">typename</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>,</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;          scan_step stp&gt;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">struct </span>ScanKernelFunctor {</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="keyword">typedef</span> cl::sycl::accessor&lt;CoeffReturnType, 1, cl::sycl::access::mode::read_write, cl::sycl::access::target::local&gt;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;      LocalAccessor;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="keyword">static</span> EIGEN_CONSTEXPR <span class="keywordtype">int</span> PacketSize = ScanParameters&lt;Index&gt;::ScanPerThread / 2;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  LocalAccessor scratch;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;  Evaluator dev_eval;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  OutAccessor out_accessor;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  OutAccessor temp_accessor;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  <span class="keyword">const</span> ScanParameters&lt;Index&gt; scanParameters;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;  Op accumulator;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">bool</span> inclusive;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScanKernelFunctor(LocalAccessor scratch_, <span class="keyword">const</span> Evaluator dev_eval_,</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                                                          OutAccessor out_accessor_, OutAccessor temp_accessor_,</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                                                          <span class="keyword">const</span> ScanParameters&lt;Index&gt; scanParameters_, Op accumulator_,</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                                                          <span class="keyword">const</span> <span class="keywordtype">bool</span> inclusive_)</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;      : scratch(scratch_),</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        dev_eval(dev_eval_),</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        out_accessor(out_accessor_),</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        temp_accessor(temp_accessor_),</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        scanParameters(scanParameters_),</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        accumulator(accumulator_),</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        inclusive(inclusive_) {}</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;  <span class="keyword">template</span> &lt;scan_step sst = stp, <span class="keyword">typename</span> Input&gt;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  std::enable_if_t&lt;sst == scan_step::first, CoeffReturnType&gt; EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;      EIGEN_STRONG_INLINE</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;      read(<span class="keyword">const</span> Input &amp;inpt, <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_id) {</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keywordflow">return</span> inpt.coeff(global_id);</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  }</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;  <span class="keyword">template</span> &lt;scan_step sst = stp, <span class="keyword">typename</span> Input&gt;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;  std::enable_if_t&lt;sst != scan_step::first, CoeffReturnType&gt; EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;      EIGEN_STRONG_INLINE</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;      read(<span class="keyword">const</span> Input &amp;inpt, <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_id) {</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <span class="keywordflow">return</span> inpt[global_id];</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  }</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;  <span class="keyword">template</span> &lt;scan_step sst = stp, <span class="keyword">typename</span> InclusiveOp&gt;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  std::enable_if_t&lt;sst == scan_step::first&gt; EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  first_step_inclusive_Operation(InclusiveOp inclusive_op) {</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    inclusive_op();</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  }</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160; </div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;  <span class="keyword">template</span> &lt;scan_step sst = stp, <span class="keyword">typename</span> InclusiveOp&gt;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;  std::enable_if_t&lt;sst != scan_step::first&gt; EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  first_step_inclusive_Operation(InclusiveOp) {}</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> operator()(cl::sycl::nd_item&lt;1&gt; itemID) {</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keyword">auto</span> out_ptr = out_accessor.get_pointer();</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keyword">auto</span> tmp_ptr = temp_accessor.get_pointer();</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keyword">auto</span> scratch_ptr = scratch.get_pointer().get();</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160; </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> loop_offset = 0; loop_offset &lt; scanParameters.loop_range; loop_offset++) {</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> data_offset = (itemID.get_global_id(0) + (itemID.get_global_range(0) * loop_offset));</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> tmp = data_offset % scanParameters.panel_threads;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_id = data_offset / scanParameters.panel_threads;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> group_id = tmp / scanParameters.group_threads;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;      tmp = tmp % scanParameters.group_threads;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_id = tmp / scanParameters.block_threads;</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> local_id = tmp % scanParameters.block_threads;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;      <span class="comment">// we put one element per packet in scratch_mem</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scratch_stride = scanParameters.elements_per_block / PacketSize;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scratch_offset = (itemID.get_local_id(0) / scanParameters.block_threads) * scratch_stride;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;      CoeffReturnType private_scan[ScanParameters&lt;Index&gt;::ScanPerThread];</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;      CoeffReturnType inclusive_scan;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;      <span class="comment">// the actual panel size is scan_size * non_scan_size.</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;      <span class="comment">// elements_per_panel is roundup to power of 2 for binary tree</span></div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_offset = panel_id * scanParameters.scan_size * scanParameters.non_scan_size;</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> group_offset = group_id * scanParameters.non_scan_stride;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;      <span class="comment">// This will be effective when the size is bigger than elements_per_block</span></div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_offset = block_id * scanParameters.elements_per_block * scanParameters.scan_stride;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> thread_offset = (ScanParameters&lt;Index&gt;::ScanPerThread * local_id * scanParameters.scan_stride);</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_offset = panel_offset + group_offset + block_offset + thread_offset;</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> next_elements = 0;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;      EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ScanParameters&lt;Index&gt;::ScanPerThread; i++) {</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;        <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_id = global_offset + next_elements;</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        private_scan[i] = ((((block_id * scanParameters.elements_per_block) +</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                             (ScanParameters&lt;Index&gt;::ScanPerThread * local_id) + i) &lt; scanParameters.scan_size) &amp;&amp;</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;                           (global_id &lt; scanParameters.total_size))</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                              ? read(dev_eval, global_id)</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                              : accumulator.initialize();</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        next_elements += scanParameters.scan_stride;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;      }</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;      first_step_inclusive_Operation([&amp;]() EIGEN_DEVICE_FUNC {</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        <span class="keywordflow">if</span> (inclusive) {</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;          inclusive_scan = private_scan[ScanParameters&lt;Index&gt;::ScanPerThread - 1];</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;        }</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;      });</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;      <span class="comment">// This for loop must be 2</span></div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;      EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> packetIndex = 0; packetIndex &lt; ScanParameters&lt;Index&gt;::ScanPerThread; packetIndex += PacketSize) {</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;        <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> private_offset = 1;</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;        <span class="comment">// build sum in place up the tree</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;        EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> d = PacketSize &gt;&gt; 1; d &gt; 0; d &gt;&gt;= 1) {</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;          EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;          <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> l = 0; l &lt; d; l++) {</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;            <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> ai = private_offset * (2 * l + 1) - 1 + packetIndex;</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;            <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> bi = private_offset * (2 * l + 2) - 1 + packetIndex;</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;            CoeffReturnType accum = accumulator.initialize();</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;            accumulator.reduce(private_scan[ai], &amp;accum);</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            accumulator.reduce(private_scan[bi], &amp;accum);</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            private_scan[bi] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;          }</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;          private_offset *= 2;</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        }</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        scratch_ptr[2 * local_id + (packetIndex / PacketSize) + scratch_offset] =</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;            private_scan[PacketSize - 1 + packetIndex];</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        private_scan[PacketSize - 1 + packetIndex] = accumulator.initialize();</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        <span class="comment">// traverse down tree &amp; build scan</span></div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;        EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> d = 1; d &lt; PacketSize; d *= 2) {</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;          private_offset &gt;&gt;= 1;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;          EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;          <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> l = 0; l &lt; d; l++) {</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;            <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> ai = private_offset * (2 * l + 1) - 1 + packetIndex;</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;            <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> bi = private_offset * (2 * l + 2) - 1 + packetIndex;</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            CoeffReturnType accum = accumulator.initialize();</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;            accumulator.reduce(private_scan[ai], &amp;accum);</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            accumulator.reduce(private_scan[bi], &amp;accum);</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            private_scan[ai] = private_scan[bi];</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            private_scan[bi] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;          }</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;        }</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;      }</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160; </div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> offset = 1;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;      <span class="comment">// build sum in place up the tree</span></div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;      <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> d = scratch_stride &gt;&gt; 1; d &gt; 0; d &gt;&gt;= 1) {</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        <span class="comment">// Synchronise</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;        itemID.barrier(cl::sycl::access::fence_space::local_space);</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;        <span class="keywordflow">if</span> (local_id &lt; d) {</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;          <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> ai = offset * (2 * local_id + 1) - 1 + scratch_offset;</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;          <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> bi = offset * (2 * local_id + 2) - 1 + scratch_offset;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;          CoeffReturnType accum = accumulator.initialize();</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;          accumulator.reduce(scratch_ptr[ai], &amp;accum);</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;          accumulator.reduce(scratch_ptr[bi], &amp;accum);</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;          scratch_ptr[bi] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;        }</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;        offset *= 2;</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;      }</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;      <span class="comment">// Synchronise</span></div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;      itemID.barrier(cl::sycl::access::fence_space::local_space);</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;      <span class="comment">// next step optimisation</span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;      <span class="keywordflow">if</span> (local_id == 0) {</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        <span class="keywordflow">if</span> (((scanParameters.elements_per_group / scanParameters.elements_per_block) &gt; 1)) {</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;          <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> temp_id = panel_id * (scanParameters.elements_per_group / scanParameters.elements_per_block) *</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;                                    scanParameters.non_scan_size +</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;                                group_id * (scanParameters.elements_per_group / scanParameters.elements_per_block) +</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;                                block_id;</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;          tmp_ptr[temp_id] = scratch_ptr[scratch_stride - 1 + scratch_offset];</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        }</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        <span class="comment">// clear the last element</span></div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;        scratch_ptr[scratch_stride - 1 + scratch_offset] = accumulator.initialize();</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;      }</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;      <span class="comment">// traverse down tree &amp; build scan</span></div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;      <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> d = 1; d &lt; scratch_stride; d *= 2) {</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;        offset &gt;&gt;= 1;</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        <span class="comment">// Synchronise</span></div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;        itemID.barrier(cl::sycl::access::fence_space::local_space);</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <span class="keywordflow">if</span> (local_id &lt; d) {</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;          <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> ai = offset * (2 * local_id + 1) - 1 + scratch_offset;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;          <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> bi = offset * (2 * local_id + 2) - 1 + scratch_offset;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;          CoeffReturnType accum = accumulator.initialize();</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;          accumulator.reduce(scratch_ptr[ai], &amp;accum);</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;          accumulator.reduce(scratch_ptr[bi], &amp;accum);</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;          scratch_ptr[ai] = scratch_ptr[bi];</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;          scratch_ptr[bi] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;        }</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;      }</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;      <span class="comment">// Synchronise</span></div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;      itemID.barrier(cl::sycl::access::fence_space::local_space);</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;      <span class="comment">// This for loop must be 2</span></div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;      EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> packetIndex = 0; packetIndex &lt; ScanParameters&lt;Index&gt;::ScanPerThread; packetIndex += PacketSize) {</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;        EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;        <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> i = 0; i &lt; PacketSize; i++) {</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;          CoeffReturnType accum = private_scan[packetIndex + i];</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;          accumulator.reduce(scratch_ptr[2 * local_id + (packetIndex / PacketSize) + scratch_offset], &amp;accum);</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;          private_scan[packetIndex + i] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;        }</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;      }</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;      first_step_inclusive_Operation([&amp;]() EIGEN_DEVICE_FUNC {</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;        <span class="keywordflow">if</span> (inclusive) {</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;          accumulator.reduce(private_scan[ScanParameters&lt;Index&gt;::ScanPerThread - 1], &amp;inclusive_scan);</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;          private_scan[0] = accumulator.finalize(inclusive_scan);</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;        }</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;      });</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;      next_elements = 0;</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;      <span class="comment">// right the first set of private param</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;      EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;      <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> i = 0; i &lt; ScanParameters&lt;Index&gt;::ScanPerThread; i++) {</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_id = global_offset + next_elements;</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;        <span class="keywordflow">if</span> ((((block_id * scanParameters.elements_per_block) + (ScanParameters&lt;Index&gt;::ScanPerThread * local_id) + i) &lt;</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;             scanParameters.scan_size) &amp;&amp;</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;            (global_id &lt; scanParameters.total_size)) {</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;          <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> private_id = (i * !inclusive) + (((i + 1) % ScanParameters&lt;Index&gt;::ScanPerThread) * (inclusive));</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;          out_ptr[global_id] = private_scan[private_id];</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;        }</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;        next_elements += scanParameters.scan_stride;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;      }</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    }  <span class="comment">// end for loop</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;  }</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;};</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160; </div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> CoeffReturnType, <span class="keyword">typename</span> InAccessor, <span class="keyword">typename</span> OutAccessor, <span class="keyword">typename</span> Op, <span class="keyword">typename</span> Index&gt;</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;<span class="keyword">struct </span>ScanAdjustmentKernelFunctor {</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keyword">typedef</span> cl::sycl::accessor&lt;CoeffReturnType, 1, cl::sycl::access::mode::read_write, cl::sycl::access::target::local&gt;</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;      LocalAccessor;</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;  <span class="keyword">static</span> EIGEN_CONSTEXPR <span class="keywordtype">int</span> PacketSize = ScanParameters&lt;Index&gt;::ScanPerThread / 2;</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;  InAccessor in_accessor;</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;  OutAccessor out_accessor;</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;  <span class="keyword">const</span> ScanParameters&lt;Index&gt; scanParameters;</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;  Op accumulator;</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScanAdjustmentKernelFunctor(LocalAccessor, InAccessor in_accessor_,</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;                                                                    OutAccessor out_accessor_,</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;                                                                    <span class="keyword">const</span> ScanParameters&lt;Index&gt; scanParameters_,</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;                                                                    Op accumulator_)</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;      : in_accessor(in_accessor_),</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;        out_accessor(out_accessor_),</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;        scanParameters(scanParameters_),</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        accumulator(accumulator_) {}</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160; </div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> operator()(cl::sycl::nd_item&lt;1&gt; itemID) {</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    <span class="keyword">auto</span> in_ptr = in_accessor.get_pointer();</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;    <span class="keyword">auto</span> out_ptr = out_accessor.get_pointer();</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160; </div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> loop_offset = 0; loop_offset &lt; scanParameters.loop_range; loop_offset++) {</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> data_offset = (itemID.get_global_id(0) + (itemID.get_global_range(0) * loop_offset));</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> tmp = data_offset % scanParameters.panel_threads;</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_id = data_offset / scanParameters.panel_threads;</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> group_id = tmp / scanParameters.group_threads;</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;      tmp = tmp % scanParameters.group_threads;</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_id = tmp / scanParameters.block_threads;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> local_id = tmp % scanParameters.block_threads;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160; </div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;      <span class="comment">// the actual panel size is scan_size * non_scan_size.</span></div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;      <span class="comment">// elements_per_panel is roundup to power of 2 for binary tree</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_offset = panel_id * scanParameters.scan_size * scanParameters.non_scan_size;</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> group_offset = group_id * scanParameters.non_scan_stride;</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;      <span class="comment">// This will be effective when the size is bigger than elements_per_block</span></div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_offset = block_id * scanParameters.elements_per_block * scanParameters.scan_stride;</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> thread_offset = ScanParameters&lt;Index&gt;::ScanPerThread * local_id * scanParameters.scan_stride;</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160; </div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_offset = panel_offset + group_offset + block_offset + thread_offset;</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_size = scanParameters.elements_per_group / scanParameters.elements_per_block;</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;      <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> in_id = (panel_id * block_size * scanParameters.non_scan_size) + (group_id * block_size) + block_id;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;      CoeffReturnType adjust_val = in_ptr[in_id];</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160; </div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;      <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> next_elements = 0;</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;      EIGEN_UNROLL_LOOP</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;      <span class="keywordflow">for</span> (<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> i = 0; i &lt; ScanParameters&lt;Index&gt;::ScanPerThread; i++) {</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;        <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_id = global_offset + next_elements;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;        <span class="keywordflow">if</span> ((((block_id * scanParameters.elements_per_block) + (ScanParameters&lt;Index&gt;::ScanPerThread * local_id) + i) &lt;</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;             scanParameters.scan_size) &amp;&amp;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;            (global_id &lt; scanParameters.total_size)) {</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;          CoeffReturnType accum = adjust_val;</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;          accumulator.reduce(out_ptr[global_id], &amp;accum);</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;          out_ptr[global_id] = accumulator.finalize(accum);</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;        }</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;        next_elements += scanParameters.scan_stride;</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;      }</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    }</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;  }</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;};</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160; </div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Index&gt;</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;<span class="keyword">struct </span>ScanInfo {</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;total_size;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;scan_size;</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;panel_size;</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;non_scan_size;</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;scan_stride;</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;  <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;non_scan_stride;</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160; </div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> max_elements_per_block;</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_size;</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_threads;</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> group_threads;</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> block_threads;</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> elements_per_group;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> elements_per_block;</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> loop_range;</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> global_range;</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;  <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> local_range;</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;  <span class="keyword">const</span> Eigen::SyclDevice &amp;dev;</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;  EIGEN_STRONG_INLINE ScanInfo(<span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;total_size_, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;scan_size_, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;panel_size_,</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;                               <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;non_scan_size_, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;scan_stride_, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> &amp;non_scan_stride_,</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;                               <span class="keyword">const</span> Eigen::SyclDevice &amp;dev_)</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;      : total_size(total_size_),</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;        scan_size(scan_size_),</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;        panel_size(panel_size_),</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;        non_scan_size(non_scan_size_),</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;        scan_stride(scan_stride_),</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;        non_scan_stride(non_scan_stride_),</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;        dev(dev_) {</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;    <span class="comment">// must be power of 2</span></div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;    local_range = std::min(<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(dev.getNearestPowerOfTwoWorkGroupSize()),</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;                           <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(EIGEN_SYCL_LOCAL_THREAD_DIM0 * EIGEN_SYCL_LOCAL_THREAD_DIM1));</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160; </div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;    max_elements_per_block = local_range * ScanParameters&lt;Index&gt;::ScanPerThread;</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160; </div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;    elements_per_group =</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;        dev.getPowerOfTwo(<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(roundUp(<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(scan_size), ScanParameters&lt;Index&gt;::ScanPerThread)), <span class="keyword">true</span>);</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> elements_per_panel = elements_per_group * non_scan_size;</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;    elements_per_block = std::min(<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(elements_per_group), <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(max_elements_per_block));</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;    panel_threads = elements_per_panel / ScanParameters&lt;Index&gt;::ScanPerThread;</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;    group_threads = elements_per_group / ScanParameters&lt;Index&gt;::ScanPerThread;</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    block_threads = elements_per_block / ScanParameters&lt;Index&gt;::ScanPerThread;</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;    block_size = elements_per_group / elements_per_block;</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;<span class="preprocessor">#ifdef EIGEN_SYCL_MAX_GLOBAL_RANGE</span></div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> max_threads = std::min(<a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(panel_threads * panel_size), <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(EIGEN_SYCL_MAX_GLOBAL_RANGE));</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> max_threads = panel_threads * panel_size;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;    global_range = roundUp(max_threads, local_range);</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    loop_range = <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;        std::ceil(<span class="keywordtype">double</span>(elements_per_panel * panel_size) / (global_range * ScanParameters&lt;Index&gt;::ScanPerThread)));</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;  }</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;  <span class="keyword">inline</span> ScanParameters&lt;Index&gt; get_scan_parameter() {</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;    <span class="keywordflow">return</span> ScanParameters&lt;Index&gt;(total_size, non_scan_size, scan_size, non_scan_stride, scan_stride, panel_threads,</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;                                 group_threads, block_threads, elements_per_group, elements_per_block, loop_range);</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;  }</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;  <span class="keyword">inline</span> cl::sycl::nd_range&lt;1&gt; get_thread_range() {</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;    <span class="keywordflow">return</span> cl::sycl::nd_range&lt;1&gt;(cl::sycl::range&lt;1&gt;(global_range), cl::sycl::range&lt;1&gt;(local_range));</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;  }</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;};</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160; </div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> EvaluatorPo<span class="keywordtype">int</span>erType, <span class="keyword">typename</span> CoeffReturnType, <span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> Index&gt;</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="keyword">struct </span>SYCLAdjustBlockOffset {</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;  EIGEN_STRONG_INLINE <span class="keyword">static</span> <span class="keywordtype">void</span> adjust_scan_block_offset(EvaluatorPointerType in_ptr, EvaluatorPointerType out_ptr,</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;                                                           Reducer &amp;accumulator, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> total_size,</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;                                                           <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_size, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_size,</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;                                                           <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_size, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_stride,</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;                                                           <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_stride, <span class="keyword">const</span> Eigen::SyclDevice &amp;dev) {</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;    <span class="keyword">auto</span> scan_info =</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;        ScanInfo&lt;Index&gt;(total_size, scan_size, panel_size, non_scan_size, scan_stride, non_scan_stride, dev);</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160; </div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;    <span class="keyword">typedef</span> ScanAdjustmentKernelFunctor&lt;CoeffReturnType, EvaluatorPointerType, EvaluatorPointerType, Reducer, Index&gt;</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;        AdjustFuctor;</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;    dev.template unary_kernel_launcher&lt;CoeffReturnType, AdjustFuctor&gt;(in_ptr, out_ptr, scan_info.get_thread_range(),</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;                                                                      scan_info.max_elements_per_block,</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;                                                                      scan_info.get_scan_parameter(), accumulator);</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;  }</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;};</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160; </div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> CoeffReturnType, scan_step stp&gt;</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;<span class="keyword">struct </span>ScanLauncher_impl {</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> EvaluatorPo<span class="keywordtype">int</span>erType, <span class="keyword">typename</span> Reducer, <span class="keyword">typename</span> Index&gt;</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;  EIGEN_STRONG_INLINE <span class="keyword">static</span> <span class="keywordtype">void</span> scan_block(Input in_ptr, EvaluatorPointerType out_ptr, Reducer &amp;accumulator,</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;                                             <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> total_size, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_size, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_size,</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;                                             <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_size, <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_stride,</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;                                             <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_stride, <span class="keyword">const</span> <span class="keywordtype">bool</span> inclusive,</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;                                             <span class="keyword">const</span> Eigen::SyclDevice &amp;dev) {</div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;    <span class="keyword">auto</span> scan_info =</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;        ScanInfo&lt;Index&gt;(total_size, scan_size, panel_size, non_scan_size, scan_stride, non_scan_stride, dev);</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> temp_pointer_size = scan_info.block_size * non_scan_size * panel_size;</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scratch_size = scan_info.max_elements_per_block / (ScanParameters&lt;Index&gt;::ScanPerThread / 2);</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;    CoeffReturnType *temp_pointer =</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;        <span class="keyword">static_cast&lt;</span>CoeffReturnType *<span class="keyword">&gt;</span>(dev.allocate_temp(temp_pointer_size * <span class="keyword">sizeof</span>(CoeffReturnType)));</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;    EvaluatorPointerType tmp_global_accessor = dev.get(temp_pointer);</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160; </div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;    <span class="keyword">typedef</span> ScanKernelFunctor&lt;Input, CoeffReturnType, EvaluatorPointerType, Reducer, Index, stp&gt; ScanFunctor;</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;    dev.template binary_kernel_launcher&lt;CoeffReturnType, ScanFunctor&gt;(</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;        in_ptr, out_ptr, tmp_global_accessor, scan_info.get_thread_range(), scratch_size,</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;        scan_info.get_scan_parameter(), accumulator, inclusive);</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160; </div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;    <span class="keywordflow">if</span> (scan_info.block_size &gt; 1) {</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;      ScanLauncher_impl&lt;CoeffReturnType, scan_step::second&gt;::scan_block(</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;          tmp_global_accessor, tmp_global_accessor, accumulator, temp_pointer_size, scan_info.block_size, panel_size,</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;          non_scan_size, <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>(1), scan_info.block_size, <span class="keyword">false</span>, dev);</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160; </div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;      SYCLAdjustBlockOffset&lt;EvaluatorPointerType, CoeffReturnType, Reducer, Index&gt;::adjust_scan_block_offset(</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;          tmp_global_accessor, out_ptr, accumulator, total_size, scan_size, panel_size, non_scan_size, scan_stride,</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;          non_scan_stride, dev);</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;    }</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;    dev.deallocate_temp(temp_pointer);</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;  }</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;};</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160; </div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;}  <span class="comment">// namespace internal</span></div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;}  <span class="comment">// namespace TensorSycl</span></div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Self, <span class="keyword">typename</span> Reducer, <span class="keywordtype">bool</span> vectorize&gt;</div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="keyword">struct </span>ScanLauncher&lt;Self, Reducer, <a class="code" href="namespaceEigen.html">Eigen</a>::SyclDevice, vectorize&gt; {</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> Self::Index <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>;</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> Self::CoeffReturnType CoeffReturnType;</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> Self::Storage Storage;</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> Self::EvaluatorPointerType EvaluatorPointerType;</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;  <span class="keywordtype">void</span> operator()(Self &amp;<span class="keyword">self</span>, EvaluatorPointerType data) {</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> total_size = internal::array_prod(<span class="keyword">self</span>.dimensions());</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_size = <span class="keyword">self</span>.size();</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> scan_stride = <span class="keyword">self</span>.stride();</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;    <span class="comment">// this is the scan op (can be sum or ...)</span></div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;    <span class="keyword">auto</span> accumulator = <span class="keyword">self</span>.accumulator();</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;    <span class="keyword">auto</span> inclusive = !<span class="keyword">self</span>.exclusive();</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;    <span class="keyword">auto</span> consume_dim = <span class="keyword">self</span>.consume_dim();</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;    <span class="keyword">auto</span> dev = <span class="keyword">self</span>.device();</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160; </div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;    <span class="keyword">auto</span> dims = <span class="keyword">self</span>.inner().dimensions();</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160; </div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;    <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_size = 1;</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;    <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> panel_size = 1;</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(Self::Layout) == <span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(<a class="codeRef" href="../group__enums.html#ggaacded1a18ae58b0f554751f6cdf9eb13a0103672ae41005ab03b4176c765afd62">ColMajor</a>)) {</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; consume_dim; i++) {</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;        non_scan_size *= dims[i];</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;      }</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = consume_dim + 1; i &lt; Self::NumDims; i++) {</div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;        panel_size *= dims[i];</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;      }</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = Self::NumDims - 1; i &gt; consume_dim; i--) {</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;        non_scan_size *= dims[i];</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;      }</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = consume_dim - 1; i &gt;= 0; i--) {</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;        panel_size *= dims[i];</div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;      }</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;    }</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;    <span class="keyword">const</span> <a class="codeRef" href="../namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a> non_scan_stride = (scan_stride &gt; 1) ? 1 : scan_size;</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;    <span class="keyword">auto</span> eval_impl = <span class="keyword">self</span>.inner();</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;    TensorSycl::internal::ScanLauncher_impl&lt;CoeffReturnType, TensorSycl::internal::scan_step::first&gt;::scan_block(</div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;        eval_impl, data, accumulator, total_size, scan_size, panel_size, non_scan_size, scan_stride, non_scan_stride,</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;        inclusive, dev);</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;  }</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;};</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;} <span class="comment">// namespace internal</span></div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;}  <span class="comment">// namespace Eigen</span></div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160; </div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="preprocessor">#endif  </span><span class="comment">// UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_SYCL_SYCL_HPP</span></div>
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